What this MCCB carries on the line
The Siemens SENTRON 3VA1180-5EF32-0BA0 is a 3-pole molded case circuit breaker rated for 80 A continuous current at 40 °C, and it holds that 80 A rating right up through 50 °C before it starts to derate — at 55 °C it's still good for 76.8 A, at 70 °C it's 72 A. Breaking capacity is the headline number here: 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V. Those are high-interrupt ratings — this breaker can clear a serious fault without welding its contacts shut or venting plasma into the enclosure. At 690 V it still manages 17 kA.
The 3VA1180-5EF32-0BA0 measures 70 mm deep by 76.2 mm wide by 130 mm tall.